Bur-wheel support for knitting-machines.



" PATENIBD MAY 14, 19o?.

No. 853,394. I

A. A. BAILLEY.

EUR, WHEEL SUPPORT FOR K'NIITIN-G M AGHI'N'ES. 'APPLICATION FILED JUNI: 21. 190s.

ECF-l- 2o 4 1a Q e |I Y 1 i I 6 1 if Il( r *"2 'l 2S I Y/.s 318404944214124319 20' q B l`.... 1: e T .E x

ALBERT A. BAILIJEY, OF COIIOES, NEW YORK.

BUR-WHEEL SUPPORT FOR KNlTTlNG-NIACHINES.

Specification of Letters Patent.

Patented May 14, 1907.

Application ned Juwel, 190e. seriaiivaszavas.

To m/Z whom t nto/y concern:

Be it known that I, ALBERT A. BAILLEY, a subject ofthe King of Belgium, residing at Cohoes, in the county of Albany and State of New York, have invented certain new and useful Improvements in Bur-Wheel Supports for Knitting-Machines; and I do declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in bur-wheel supports for knitting-machines.

The object of the invention is to provide an improved construction of support, ,whereby the expense of manufacturing the same will be materially reduced and a true, accurate bearing formed for the shaft.

A further object is to provide means whereby the tension of the spring in said support may be quickly and easily adjusted without` removing the bur from the needles and while the machine is in operation` With the above and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be hereinafter described and claimed.

In the accompanying drawings z-Figure 1 is a side view of abur wheel support constructed in accordance with the invention; Fig. 2 is a longitudinal vertical sectional view of the support; Fig. 3 is a cross sectional view on the line 3-3 of Fig. 2; and E: 4 is a similar view on the line 4h11 of Referring more particularly to the drawings, 1 denotes a bur wheel support or holder comprising a supporting plate 2, in which is arranged a spindle barrel 3, having in its opposite ends integral bearings 1, in which is mounted a spindle 5 provided on its inner end with a reduced portion to receive the bur brackets, not shown. The spindle 5 is reduced at its outer end to form a centrallydisposed annular shoulder 6, said outervreduced end being threaded, as shown at 7, to receive an adjusting nut 9 which is adapted to bear against the end of the barrel and which is held in position by a jam nut 3.

In the outer end. of the barrel 3 at diainetrically opposite points are formed longitudinally-disposed slots 10, through which are adapted to project threaded lugs formed on a tension collar 13 slidably mounted on the reduced outer end of the spindle and between which and the shoulder 6 on the spindle is arranged a coil spring 14. The tension of the spring 111 is normally exerted to project the spindle inwardly. In the enlarged portion ofthe spindle is arranged a key or feather which is adapted to engage the key-way 16 formed in the inner bearing of the barrel 3, whereby said spindle is held against revolvin in said barrel.

On the outer 'ace of the supporting plate 2 around the barrel opening therein is formed an annular concentric groove or recess 17, in which is disposed the inner end of a tension sleeve 18. The outer end of the sleeve 13 is engaged with an annular recess or groove 19 formed in a milled nut 2O adapted to be screwed onto the threaded. outer end of the barrel, as shown, thereby revolubly supporting the tension sleeve 18 in place around the barrel.

Within the outer end of the tension sleeve 1S are arranged screw threads which may be formed on a short section of tubing 21 secured within said end of the sleeve, as shown, or said threads may, if desired, be formed directly on the inner walls of the sleeve. The threads of the tubing 21 are adapted to engage the threaded lugs 12 on the tension collar 13, whereby when said sleeve 1,8 is turned in one direction or the other, said collar will be moved inwardly or outwardly on the spindle 5, thereby increasing `or diminishing the tensionof the spring 14;, as will be understood, this adjustment being eifected without removing the burs or stopping the machine.

The barrel 3 is held in the supporting plate l 2 by means of a set screw 22 which engages` an annular groove 23 formed in said barrel. The latter is preferably provided on its inner end with a beveled head 24 to it within the beveled outer portion of the hole in the supporting plate 2. If desired, a flat headed screw 25 may be arranged in the inner face of the supporting plate in such position that the head of the screw will engage the outer face of the beveled head on the barrel 3, thereby preventing said barrel from moving inward when the set screw 22 and the barrel jam nut are loosened, which inward movement of the barrel might interfere with the bur blades in the needle.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

IOC

IIO

Various changes in the form', proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any olf the advantages of this invention, as deiined 'by the appended claims.

Having thus described my invention what 1 claim as new and desire' to secure by Letters Patent, is

l. A bur holder for knitting machines cornprising a spindle barrel having integrallyn 'Formed bearings arranged in the opposite ends thereof and slots in the side walls thereof, a spindle mounted in said bearings, a tension-spring on said s indle, a collar slidable on said spindle to a .just the tension of said spring and having lugs projecting throu-gh the slots in said barrel, and an internally screwtl'1readed sleeve mounted on said barrel and adapted to engage said threaded lugs to .regulate the tension of the spring.

2. A bur holder for knitting machines co1nprising a spindle barrel, integrally formed alined bearings arranged in the opposite end oilE said barrel, a spindle mounted in said bearings, said spindle having a reduced threaded outer end forming a shoulder, a tension spring arranged on the reduced end of' said spindle, one end of said spring engaging said shoulder, a tension collar slidably mounted on said reduced end of the spindle to engage the outer end oi. said spring, threaded lugs formed on said collar, said lugs projecting in opposite directions through alined slots formed in the wall of said barrel, a tension sleeve mounted on said barrel, said sleeve having arranged therein screw threads to engage the threadedI lugs on said tension collar,

whereby when said sleeve is turned in one direction or the other, the collar will be adjusted to regulate the tension of said spring, and means to adjust said spindle in said barrel, substantially as described.

3. A bur holder for knittinganachines eomprising a supporting plate, a spindle barrel arranged in said plate, a set screw to hold said barrel in place, means to prevent an inward movement of the barrel when said set screw is loosened, a spindle mounted in the bearings in said barrel, a key to hold said spindle against revolving in said bearings, an annular shoulder formed on said spindle, a spring to engage said shoulder, a tension col lar to engage the opposite end of said spring, oppositely projecting threaded lugs formed on said collar and adapted to slide in longitudinally-disposed slots formed in said barrel, a tension sleeve having one end revolubly mounted in the outer side. of said supporting plate, a nut screwed onto the outer end of the barrel and into engagement' with the opposite end of said sleeve to revolubly support said end, a threaded sleeve arranged in said barrel to engage the threaded lugs on said tension collar, an adjusting nut adapted to be screwed onto the threaded projecting outer end of said spindle and a jani nut adapted to be screwed into engagement with said adjusting nut, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALBERT A. BAILLEY.

Witnesses:

GEO. W. ANDREW, DANIEL J. Cesano. 

